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Calculate the average atomic mass for argon if its abundance in nature is 7.0% argon-39, 92.5% argon-40, and 0.5% argon-41. Show your work
answered
Aug 24, 2021
Chemistry
high-school
2
votes
161k
views
En una granja se observa que por 12 patos hay 5 gallinas, por tres gallinas hay 8 pavos ;por 10 pavos hay 9 cerdos. ¿A cuantos patos equivalen 7 cerdos?
answered
Jul 23, 2021
Mathematics
high-school
6
votes
47.3k
views
Backpack discounted 10% on sale for $37.80 what was the original price???
answered
Jun 22, 2021
Mathematics
middle-school
5
votes
52.3k
views
HELLLPPPP ,The value for the missing side is: 25. 4 5. None of these choices are correct.
answered
Mar 20, 2021
Mathematics
high-school
3
votes
179k
views
Choose the best selection for the parallelogram with vertices at the following points. (-5,5), (4,2), (3,-1), (-6,2) A. Rectangle B. Square C. Rhombus D. None
answered
Mar 13, 2021
Mathematics
middle-school
2
votes
83.4k
views
Which region was almost every country colonized by an imperial power in the 19th century
answered
May 16, 2020
History
middle-school
0
votes
193k
views
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